(19)

(11)

EP 0 863 865 A1

(12)

(43) Date of publication: 16.09.1998 Bulletin 1998/38 (21) Application number: 96929508.0 (22) Date of filing: 09.09.1996

(51) International Patent Classification (IPC):  C01B 7/ 03( . ) C01D 9/ 04( . ) C07C 51/ 48( . ) C01B 7/ 07( . ) C07C 51/ 02( . ) (86) International application number: PCT/IL1996/000105 (87) International publication number: WO 1997/011047 (27.03.1997 Gazette 1997/14)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 19.09.1995 IL 19950115346 (71) Applicant: YISSUM RESEARCH DEVELOPMENT COMPANY OF THE HEBREW UNIVERSITY OF JERUSALEM Jerusalem, 92 182 (IL)	(74) Representative: Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät  Maximilianstrasse 58 80538 München 80538 München (DE)